Machine for cutting metal shapes



(No Model.) Sheets-Sheet 1.

H. O. JONES. MACHINE FOR CUTTING METAL SHAPES.

No. 535,207. Patented Mar. 5, 1895.

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(No Model.) 4 Sheets-Sheet 2.

H. G. JONES.

MACHINE FOR CUTTING METAL SHAPES. No. 535,207. Patented Mar. 5,1895.

(No Model.) 4 Sheets-Sh'eet 3. H. U.- JONES.

MACHINE FOR CUTTING METAL SHAPES. No. 535,207. Patented Mar. 5, 1895.

('No Model.) 4 Sheets-Shet 4.

H. O. JONES. MACHINE FOR CUTTING METAL SHAPES.-

No. 535,207. Patented Mar. 5, 1895.

FIG. 11.

FIG. 9

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PATENT HENRY C. JONES, OF WILMINGTON, DELAWARE.

MACHINE FOR CUTTING METAL SHAPES.

SPECIFICATION forming part of Letters Patent No. 535,207, dated March 5,1895.

Application filed January 14, 1895. serial No. 584,895. (No model.)

To all whom it may concern:

Be it known that I, HENRY O. JONES, aciti zen of the United States, anda resident of Wilmington, Delaware, have invented certain Improvementsin Machines for Cutting Metal tShapes, of which the following is aspecificaion.

. My invention relates to improvements in shearing machines for cuttingmetal beams, such as III-beams, channels, angles and various othershapes. This object I attain in the following manner, reference beinghad to the accompanying drawings, in which- Figure 1, is a front view ofsufficient of the machine to illustrate my invention. Fig. 2, is a sideview. Fig. 3, is asection on the line 3-'3, Fig. 1. Fig. 4, is a planview of the lower cutter. Fig. 5, is a perspective view of one of thelower side knives. Figs. 6, 7 and 8, are diagram views illustrating thedifferent movements of the machine. Figs. 9, 10 and 11, are views ofmodifications and different arrangements of the cutters.

The main object of the invention is to so construct the machine that itwill first cut the web of an I-bar, for instance, by a vertical movementand then by a lateral movement first in one direction and then theother, shear the flanges of the beam. By this means the cuttingisaccomplished Very quickly and with a single sliding head. i

A A are the housings of the machine having guide ways a a for thevertically reciprocating head B, hung to the crank shaft D by the yokeframe I) b and sliding blocks 1) which are adapted-to the cranks of theshaft. The crank shaft D is mounted in suitable hearings in the housingsA and is driven from the intermediate shaft D through gears d 01, andthis shaft is driven from the driving shaft D by a pinion d and gearwheels 01 The driving shaft D can be driven direct by an engine, itsconnecting rod being coupled to the crank 01 or it may be driven fromline shafting if more convenient.

-A' is the base on which are ways a for the lower stationary cutters aand adjustable head blocks a carrying the side cutting knives. The lowerdies or cutters o, are held in place by bolts a and can be removed anddifferent sized cutters can be placed intheir stead. The cutters a havedetachable blades held in position by bolts a as shown in Fig. 4, sothat the blades can be turned or replaced.

The head blocks 0L are laterally adjustable to accommodate differentwidths of beams and are moved toward and from each other by a screw Ahaving a hand wheel a This screw has a right and left hand thread andone thread is adapted to one block and the other to the opposite blockso that they will move in unison toward or from each other. On each headblock are blades of, shown in Fig. 5, which are preferably made squarein cross section and the bolt holes are so arranged in the block thatthe knives can be turned or reversed to present a good cutting edge.

Coupled to the upper portion of the head B is a piston rod E connectedto a piston E in a cylinder E mounted on the frame of the machine. Fluidunder pressure is admitted to the space under the piston so as tocounterbalance, to a certain extent, the weight of the reciprocatinghead B.

The head B is made hollow in the present instance and hung to a pivotbarF is a lever I carrying the upper cutting knives i 1;. These knivesare mounted in the lower portion of the lever, in any suitable manner.In the present instance they are adapted to sockets and are secured inplace by bolts 2' Atthe end of each long socket for the side knives arehard metal bearing plates i which rest in grooves, being insertedthrough slots in the sides.

Carried by the head B is a short crank shaft F having a crankf on whichis mounted a sliding blockf' adapted to a slide way i in the upperportion of the lever I. The crank shaft F is adapted to removablebearings b in the head B so that the shaft can be readily inserted ordetached.

On the front end of the shaft F is a bevel wheel 9 meshing with a bevelpinion g mounted on a vertical shaft G having its hearings in a bracketB on the slide, and adapted to slide in the hub of a bevel pinion H, towhich it is splined so that it will turn with the pinion. This pinion ismounted in a fixed bearing A secured to the frame of the machine andgears with a pinion J on a shaft J mounted in bearings in the frame ofthe machine. This shaft J is coupled to a gear wheel j by a clutch j sothat the shaft can be thrown into and out of gear with the gear wheel.This wheel j is geared to the wheel d which is also loose on the shaft Dand is coupled thereto by a clutch d which can also be thrown into andout of gear by the operator.

On each side of the frame of the machine are mounted chocks S whichconsist essentially of a shaft 3 adapted to bearings s and on each shaftis an arm 5 and a handle 3 The handles can be turned in such a mannerthat the arms 5 will bear directly upon the rear of the head blocks aand thus take the strain off the adjusting screw A when the machine isshearing.

When the blocks are adjusted for different sizes of beams filling piecesmay be inserted between the blocks and the chocks if found necessary.

In Fig. 9, I have shown a modification in which two sets of knives canbe adjusted in position for use, using an intermediate head block a anddispensing with the central upper knife t'. A Wedge 1' is insertedbetween the two knives '17, i and a confining screw i is passed throughthe block into the head. This arrangement is only used when beams of thesmaller sizes are to be cut.

The side knives are double ended so that when one edge is worn they canbe turned to present new cutting edges and it will be noticed in Fig. 1,of the drawings, that there there are two sets of these knives at eachside of the center knife 2'. By this arrangement I can use theintermediate knives as fillers, yet when a narrower I-beam is to be cutthe outer knives can be detached and the intermediate knives become theside cutting knives and when still smaller beams are to be out both sideknives can be removed leavingonly the central knife. When other sizesare to be out these knives may be detached and others substitutedtherefor and suitable wedge blocks and filling pieces may be used, asshown in Figs. 10 and 11.

The operation of the machine is as follows: If for instance an I-beam isto be out, as shown in the drawings it is mounted in position on thelower cutter and the head blocks adjusted so that the side knives of thesaid block will bear upon the flanges of the beam. The chocks are thenturned so as to relieve the screw of the pressure, the clutch d isthrown into gear imparting motion to the shaft D, which will force thehead B down and the upper knives will cut through the web of the beam,leaving the flanges intact. The clutch is then thrown out of gear andthe clutch j thrown into gear so as to impart motion to the shaft Jwhich will turn the short crank shaft F carried by the head B. Thiscrank shaft will give a lateral motion to the lever I carrying the upperknives which will cut one flange of the I-beam as shown in Fig. 7, andas the cam shaft revolves it will out the other flange, as shown in Fig.8, after which the clutch j is thrown out of gear and the clutch dthrown into gear to raise the head 13 and its knives.

When cutting single angle bars, T or other shapes, only one side cuttingknife is used and if a machine is to be built especially for thispurpose it need only have the single side motion instead of the doublemotion described above.

In some instances the sides of the upper blades may be slightly curved,as shown in Fig. 10, to properly shear the flanges without unduecrushing.

I claim as my invention 1. The combination in a machine for cuttingmetallic shapes, of the reciprocating head, a lever pivoted thereon andcarrying the upper blades, with mechanism for laterally moving thelever, substantially as specified.

2. The combination in a shearing machine, of the sliding head, a pivotedlever carried thereby, blades mounted in the lever, acrank shaft carriedby the head by which a lateral motion is imparted to the lever,substantially as described.

3. The'combination in a shearing machine for cutting metal shapes, ofthe base, the head blocks adjustable thereon, side blades carried by thehead blocks and lower blades carried by the base, a reciprocating head,a lever pivoted thereto, upper blades secured to the lever, mechanismfor laterally moving the lever so that the blades will not only cut onthe face but on the sides, substantially as described.

4. The combination of the frame of the ma chine, the reciprocating. headadapted to the frame, a pivoted lever hung to the head, means forlaterally moving the lever, blades carried by the lower portion of thelever, a base, head blocks adj ustably mounted on said base betweenwhich the metallic shape is held, and checks back of each head,substantially as described.

5. The combination of the frame, the sliding head, mechanism forreciprocating said head, a lever pivoted to the head, blades carriedthereby, a crank shaft adapted to impart motion to the lever, a verticalshaft carried by the-head and geared to the crank shaft, a pinionsplined to the said shaft, so that the shaft will turn with the pinionbut will slide therein,adriven shaft geared to the pinion, substantiallyas described.

6. The combination of the frame, the base, the lower central knifesecured to the base, the laterally adjustable head blocks mounted on thebase, knives carried thereby, with a vertically reciprocating head, alaterally vibrating lever thereon, with upper knives adjustably securedto the lever, substantially as described.

7. The combination in a metal shearing machine, of the reciprocatinghead, a lever thereon recessed to receive blades, detachable centralblade, side blades and means for securing said blades in position,substantially as described.

8. The combination in a metal shearing machine, of the reciprocatinghead, the lever pivoted thereto having pockets, central and side bladesadapted to said pockets, said side blades being shaped at their oppositeends so that they can be reversed, substantially as described.

9. The combination in a beam shearing machine, of the base, the verticalreciprocating head, pivoted lever thereon carrying the upper blades, thelower blades mounted on the base, side knives also mounted on the base,the sides of the upper and lower blades for cutting the webbeing shapedso as not to im-

